p {
  margin: 0;
}

.wrap {
  position: relative;
  width: 1200px;
  margin: 0 auto;
}

.wf-item {
  position: absolute;
  background-color: #ededed;
  box-shadow: 1px 2px 3px #ccc;
  overflow: hidden;
  transition: box-shadow 0.3s;
}

.wf-item:hover {
  box-shadow: 3px 5px 10px #999;
}

.wf-item img {
  display: block;
  width: 100%;
  opacity: 0;
  transition: opacity 1s;
}

.wf-item .title-box {
  height: 44px;
  text-align: center;
  line-height: 44px;
  background-color: #fff;
}
